Protecting-casing for inner tubes.



EEST VILELE CUP? '0. SAUER.

PROTECTING CASING FOR INNER UBES.

APPLICATION FILED NOV-28| 19'14- Pafemed July' 20, 1915.

l shoe, and, Fig. 4f is a nini@ ernten.

CHARLES Sii-UER, OF FORT PLAIN, NEW YORK.

PROTEGTNG-GSING FOR NNER TUBES.

risente.

Specification of Letters Patent.

latenteil July 20, lello.

Application filed November 28, 1914. Serial No. S7-397.

,To 'all whom fit may concern Be 1t known that l, CHARLES. Sioen, aciti- Zen of the United States, residing at lf ort Plain,v in thecount;7 of Montgomery and State of New York, have invented certain newyan d useful Improvements in Protecting Casings for lnner Tubes, ofwhich the following is a specification.

My invention relates to improvements in protecting casings tor the innertubes of' double tube tires, particularly automobile tires, the sainebeing adapted-to be arranged between thel inner tubes and the tirecasinos or shoes.

. Important objects of the invention are, to provide a protectingcasini??l oit the above mentioned character, which light. highl'vflexible, puncture proof to a high degree, inexpensive to manufacture,strong, durable, and presents substantiallv smooth or regular Contactsurfaces to the inner tube and tire casing or shoe.

Other objects and advantages of the invention will be apparentcluriinigthe course of the following description.

4 n the accompanying drawings 'forming a part of this specification andin which like numerals are employed to designate like parts throughoutthe saine. Figure l. is a eide elevation of the protecting casing,removed-from the tire casing or shoe, Fig. '2 is an enlarged sideelevation of the same,

parts being' shown in progressive centrallongitudinal sec-tion. Fig',-.3 is an enlarged transverse sectional view through the protectingcasing, inner tube and tire casing or bottom plan view of a portion ofthe protecting casing with the upper layer' broken away, showing theoverlapping armor plates.

In the drawings, wherein for the, purpose of illustration is shown apreferred emboci ment ot' thexinvention, numeral designates the`improvedprotecting casing as a whole, the same being annular and open et itsinner portion, as shown at. 6, to receive the'inner tube 7 andcompletely surround the same.

The numeral designates a tire casing or shoe. The protecting: casing 5covers the entire inner surface" of the tire casing 8, having its inneredges 9 arranged adjacent corresponding edges of the beads l0 of thetire casing or shoe 8, as shown. The protecting casing 5 formed of anlnular innpr and, outer -lexible sections or strips ll and l2, which maybe :formed of rubber, canvas, rubberized or rubber-coated canvas, or thelike. Eisposed between the sections or strips ll and l2 are curvedvinetallic armor Aplates 13, which are coinparatirelv thin, lie-vible,and substantially nonresilient, the saine being preferably Yformed oftin or iron. The armor pistes 13 have their transverse edgesoverlaiiping, the alternate plates having both edges preferably arrangedout Yardlv ot and overlapping the adjacent edges of the other alternateplates, as shown. The overlapping edges of these armor plates are 'freeJfrom connection With each other, and are adapted to perceptibly slidewith relation to euch other. Each arnior plate extends transversely ofthe. protecting casing and is permanently attached to the inner sectionor strip lll, by means of brads or rivets li. having' their oppositeends Vi'lzottened, whereby they present substantially Hat surfaces withtire surfaces of the sections ll and l2. The armor plates 13 are freefrom connection with the upper ser-,tion or strip l2. This is believedto be an important feature, as b v having no connection between thearmor plates and the outer sect-ion', the inazfiinnni degree offlexibility obtainable, at the Sametime dispensing with the necessiuj;of connecting the arinor plates b v hinges or hinged joints. TWhile lhave described and shown the armor plates as attached to the innersection, which is preferred, yet it is obvious that they may be attachedto the outer section, and the invention practised withpsolne degree ofsuccess. The 'tree edges 9 of the sections or strips 1l. and lf2 arecemented or otherwise secured to-- gether at a point slightlf,1 spacedfrom the ends oi the. armor plates 13, but the armor plates ibstantial.'encircle the inner tube. found tb t the protecting casing d as stated,is exceedingly flexible, liebt, and may be conveniently hanrlled,'ufheninserting 4the same in the tire easing orjshoe when placing the innertube 'Within the same. ilie ern-lor yplates i3 are preferablyconstructed comparativelv y thin., theeame serving to ceetueiigv preventthe inner tube but not substarn tially impniring the iexibility of theprotesting casing or tire casing or shoe.

lt is to be understood tlliat the Jforni of my invention herewith shownend described is 'to be taken es e. preferred example of the punctureoit vsaine, end that various changes in the'shape,

I inner tube of a double tube tire, comprising inner and outer highlyflexible sections connected near their edges and separated throughoutthe remainder of their inner surfaces, highly flexible thin relativelynonresilient metallic armor plates arranged between Iand extendingtransversely of the in; ner and outer sections in overlapping relationto each other, attaching devices securing the tread portions of themetallic armor plates to the tread portion of the inner leXi ble sectionand having no connection With the tread portion of the outer flexiblesection, and attaching devices securing the in` Y ner ends of themetallic armor plates to the corresponding portions of the innerflexible section.

2. A highly flexible protecting casing for receiving the" inner tube ofa double tube v tire, and highly flexible thin relatively nonresilientmetallic armor plates arranged transversely of the tread portion oftheprotecting casing in overlapping relatlon and' attached thereto, wherebythe edges ofthe A. casing may be moved toiouter-po'sitions and;

remain in such positions.

Witnesses. CHARLES in presence of two Witnesses:

FRANK E. HUFNAIL, CHARLES J. Woon.

` I In testimonywhereof I aliix'my signature i

